bit、little、few、a bit、a little、a few、a bit of、a little of 并且

a little=a little bit.意思是：一点点,后面接形容词,a little bit shy,a little disappointed.
a little= little of sth.意思是：少量的 些许的,后面接不可数名词.比如a little time/a little French.
little,是否定词,意思是几乎没有,接不可数名词.I paid attention to what others were saying.我不怎么注意别人说什么.
a few,意思是一些,后面接可数名词,a few questions.
few,是否定词,意思是几乎没有,接可数名词.Few students came.没什么学生来.
a bit of,表示少量,接抽象名词,比如 a bit of help/gardening.一点儿帮助,一些园艺活儿.
a bit= a little= a little bit,意思是一点点,比如 you are a bit young to be watching this.你有点小.不适合看这个.